Fuse.



J. S. JOHNSTON.

FUSE.

APPLICATION FILED MAR.15, 1910.

INVENTOR ,TAM s' S JohNS1/ON WITNESS-BES -UNITEDY STATES PATENT onrc .Temas s, 'JOH'Ns'rON ernsten, NRW Yoan, As'seNcn, BY manor genniansmt nssIeNmn-Nrs, rro JOHNSTON MANUFACTURING COMPANY, or Urrea, Naw Yoan, a

CORPORATION or New Yoan.

Specification f Letters Patent.

FUSE.

:Patented Feb, 1S', i913.

original application med karat i5, ichs, serial No. 483,344. Y Divided and this sppnea'tin iila aii i5,

I i910. serial N. 549,418.

useful Improvements in Fuses, of which the,I

following is a specication.

'ihis invention provides asafetyfuse for use in the art of electricity, and it 1s one ot the objects thereof to so .construct and ar,

range a structure of this nature, that assemblage may be eii'ected by the assistance of frictional engagement of the various parts, thus rendering the use of assembling rivets, screws and such other elements unnecessary, and at thesame time perfect a permanent organization except when the fuse proper 1s blown when the parts may be easily disassociated at will for the purpose of rebuilding and refilling.

The subject-matters of this application` are divided out o f an application pending before the United States Patent Office, in the name of J ames S. Johnston, for electrical fuse plug, filed March 15th, 1909, Serial Number 483,344.

The drawing accompanying this specifican tion, sets forth an embodiment of the invention, which while at present may be considered practical for all purposes may be modied or re-arranged, at will, to meetnthe demands of those skilled in the art.

In the drawing, Figure 1 illustrates a sectional view, somewhat -onan enlarged scale, of a structure embodying a plug which may be more practical in circuits of a small carrying capacity. Fig. 2 is a cross-sectional view, taken on line 10-10 of the first figure.,-

and Fig. 3 is a cross-sectional view taken on line 9-9 of said first ligure.

Similar characters of reference indicate similar parts in the views. l

A support 4, which may be constructed of any suitable material of an insulatin nature is designed to hold a fuse 5, whic as shown, may be in the form of an elongated member, such as a strip` with its ends passing around or over the free ends of the support 4. This support may be formed in any suitable manner, and is here shown as partlyarched intermediate of its extremities, whereby, to sepa-rate it from the fuse 5, at or near such a point in the fuse member as the latter may burn or blow, in which cese the fusing action will not render the support useless. The assemblage thus created.

adapted to frictionally engage with the outer wall ofthe casing 6. Formed either integrally with, or otherwise suitably associated with these caps or closures 7 are contacting elements 8 and 9, which, together, in connection with each closure, in the pres` ent case, form bifurcated clips designed to grip, frictionally, the fuse which surrounds the ends 'of the support, and incidentally the latter, and it will now be noticed through this connection, that the support 4 not only serves. the purpose of suspending the fuse, but also serves to assist in the pressing together of the parts during assemblage of the structure.

The general structural character of the closures 7 lmay be modified according to necessity Without departing from the spirit of this invention. v It is to be observed that this structure, as generally set forth herein, may be created without the assistance of screws,bolts, rivets or solder, which is a desideratum in this art, and the simplicity of structure lends considerable assistance tothe creation of the parts, as well as the substitution of them, when required.

Having thus described this invention, I claim:v

1. In a fuse of the character described,

said caps to frictionally engage said casing, whereby the interior of said casing may be quickly reached, contacting elements form-f ing bifurcated clips on said caps, a fuse, a non-conducting support for said fuse, said fuse and support adapted to beheld by said bifurcated clips, and an arch in said support, whereby to facilitate in assembling said parts.

2. In a fuse,`the combination of a glass casing, caps, means on said caps to frictionally engage the'ends of said casing, whereby the contents of said casing maybe quickly removed, contacting elements forming bi- 4 the' combination of a casing, caps, means on fulcated clips on said caps, a fuse, a non- Signed at Utica, in the county of (lneicla9 1U conducting support for saidfuse, said fuse and State of New York, this 14th dayof having its ends passing around the free ends March, in the year of our Lord nineteen of lsaidv support, and said supporthbeiigg ten.

are ed intermediate its lenofth W ere 1 same may be separated frombsaid fuse at JAMES S' JOHNSON' the point in the yfuse likely to blow and Witn'esses:

-whereby to facilitate in assembling the l FRED. W. BARNACLO,

'parts of the fuse. i S. I. DE VINE.

Copies of this patent Amay be obtained for ve eents each, by addressing the Commissioner-of Patents,

` Washington, D. C. 

